All is not lost: Post-saccadic contributions to the perceptual omission of intra-saccadic streaks
All is not lost: Post-saccadic contributions to the perceptual omission of intra-saccadic streaks
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DOI：
10.1016/j.concog.2018.05.004
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发表时间：
2018-09-01
影响因子：
2.4
通讯作者：
Rolfs, M.
中科院分区：
文献类型：
--
作者：
Balsdon, T.;Schweitzer, R.;Rolfs, M.
眼跳迅速地将眼睛推到新的位置，但我们很少经历强加在视网膜图像上的运动条纹。在这里，我们研究了空间和时间特性的后眼跳掩蔽这种感知遗漏的一个潜在的解释。观察者判断目标刺激的运动方向，一个高斯斑点，垂直向上或向下移动，然后回到它的初始位置，就像观察者进行扫视一样。我们操纵的起始和偏移的目标和干扰在各种空间关系的目标，并评估其对性能和主观信心的影响。虽然眼跳后目标的存在引起了最强的遗漏，空间上遥远的干扰刺激眼跳偏移后的偏移也损害了性能。这两个独立的效果的时间特性表明，除了掩蔽，注意力分散的独立效果进一步加重感知遗漏内扫视运动条纹。
Saccades rapidly jerk the eye into new positions, yet we rarely experience the motion streaks imposed on the retinal image. Here we examined spatial and temporal properties of post-saccadic masking-one potential explanation of this perceptual omission. Observers judged the motion direction of a target stimulus, a Gaussian blob, that moved vertically upwards or downwards and then back to its initial position, just as observers made a saccade. We manipulated the onset and offset of the target and of distractors in various spatial relations to the target, and assessed their effect on performance and subjective confidence. Although the presence of the target after the saccade caused the strongest omission, the offset of spatially distant distractor stimuli upon saccade offset also impaired performance. The temporal properties of these two separate effects suggest that, in addition to masking, an independent effect of attentional distraction further accentuates perceptual omission of intra-saccadic motion streaks.